<template>
  <div>
    <!-- 面包屑导航 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片视图 -->
    <el-card>
      <!-- 搜索与添加 -->
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input
            placeholder="请输入查询字"
            v-model="queryInfo.query"
            clearable
            @clear="getUserList"
          >
            <el-button
              slot="append"
              icon="el-icon-search"
              @click="getUserList"
            ></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="dialogVisible = true">
            添加用户
          </el-button>
        </el-col>
      </el-row>

      <!-- 用户列表 -->
      <el-table :data="userList" stripe border>
        <el-table-column type="index"></el-table-column>
        <el-table-column label="姓名" prop="username"></el-table-column>
        <el-table-column label="邮箱" prop="email"></el-table-column>
        <el-table-column label="电话" prop="mobile"></el-table-column>
        <el-table-column label="角色" prop="role_name"></el-table-column>
        <el-table-column label="状态">
          <template slot-scope="scope">
            <el-switch
              v-model="scope.row.mg_state"
              @change="userStateChange(scope.row)"
            >
            </el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作" width="180px">
          <template slot-scope="scope">
            <el-button
              type="primary"
              icon="el-icon-edit"
              size="mini"
              @click="showEditDialog(scope.row.id)"
            ></el-button>
            <el-button
              type="danger"
              icon="el-icon-delete"
              size="mini"
              @click="removeUserInfo(scope.row.id)"
            ></el-button>
            <el-tooltip
              effect="dark"
              content="分配角色"
              placement="top"
              :enterable="false"
            >
              <el-button
                type="warning"
                icon="el-icon-setting"
                size="mini"
                @click="showRolesDialog(scope.row)"
              ></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>

      <!-- 分页 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[1, 2, 5, 10]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      >
      </el-pagination>

      <!-- 添加用户弹框 -->
      <el-dialog
        title="添加用户"
        :visible.sync="dialogVisible"
        width="50%"
        @close="addDialogClose"
      >
        <!-- 内容主体 -->
        <el-form
          ref="addFormRef"
          :model="addForm"
          label-width="80px"
          :rules="addFormRules"
        >
          <el-form-item label="用户名" prop="username">
            <el-input v-model="addForm.username"></el-input>
          </el-form-item>
          <el-form-item label="密码" prop="password">
            <el-input v-model="addForm.password"></el-input>
          </el-form-item>
          <el-form-item label="邮箱" prop="email">
            <el-input v-model="addForm.email"></el-input>
          </el-form-item>
          <el-form-item label="电话" prop="mobile">
            <el-input v-model="addForm.mobile"></el-input>
          </el-form-item>
        </el-form>
        <span slot="footer" class="dialog-footer">
          <el-button @click="dialogVisible = false">取 消</el-button>
          <el-button type="primary" @click="addUser">
            确 定
          </el-button>
        </span>
      </el-dialog>

      <!-- 修改用户弹框 -->
      <el-dialog
        title="修改用户"
        :visible.sync="editDialogVisible"
        width="50%"
        @close="editDialogClosed"
      >
        <el-form
          :model="editForm"
          :rules="editFormRules"
          ref="editFormRef"
          label-width="80px"
        >
          <el-form-item label="用户名">
            <el-input v-model="editForm.username" disabled></el-input>
          </el-form-item>
          <el-form-item label="邮箱" prop="email">
            <el-input v-model="editForm.email"></el-input>
          </el-form-item>
          <el-form-item label="手机" prop="mobile">
            <el-input v-model="editForm.mobile"></el-input>
          </el-form-item>
        </el-form>
        <span slot="footer" class="dialog-footer">
          <el-button @click="editDialogVisible = false">取 消</el-button>
          <el-button type="primary" @click="editUserInfo">确 定</el-button>
        </span>
      </el-dialog>

      <!-- 分配角色弹框 -->
      <el-dialog
        title="分配角色"
        :visible.sync="setRolesDialogVisible"
        width="50%"
        @close="setRolesDialogClosed"
      >
        <div>
          <p>当前用户名称：{{ userInfo.username }}</p>
          <p>当前用户角色：{{ userInfo.role_name }}</p>
          <p>
            分配的新角色：
            <el-select v-model="selectId" placeholder="请选择">
              <el-option
                v-for="item in rolesList"
                :key="item.id"
                :label="item.roleName"
                :value="item.id"
              >
              </el-option>
            </el-select>
          </p>
        </div>
        <span slot="footer" class="dialog-footer">
          <el-button @click="setRolesDialogVisible = false">取 消</el-button>
          <el-button type="primary" @click="allotRoles">确 定</el-button>
        </span>
      </el-dialog>
    </el-card>
  </div>
</template>

<script>
export default {
  data() {
    var checkEmail = (rules, val, cb) => {
      const regEmail = /^\w+@\w+(\.\w+)+$/
      if (regEmail.test(val)) return cb()
      cb(new Error('请输入合法的邮箱'))
    }

    var checkmobile = (rules, val, cb) => {
      const regmobile = /^1[34578]\d{9}$/
      if (regmobile.test(val)) return cb()
      cb(new Error('请输入合法的手机号码'))
    }
    return {
      // 用户信息列表请求参数
      queryInfo: {
        query: '',
        // 当前页数
        pagenum: 1,
        // 每页显示几条
        pagesize: 2
      },
      total: 0,
      userList: [],
      // 添加用户对话框是否显示隐藏
      dialogVisible: false,
      // 添加用户表单数据
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: ''
      },
      // 添加用户表单验证规则
      addFormRules: {
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          { min: 6, max: 15, message: '长度在 6 到 15 个字符', trigger: 'blur' }
        ],
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '请输入电话', trigger: 'blur' },
          { validator: checkmobile, trigger: 'blur' }
        ]
      },
      // 修改用户对话框是否显示隐藏
      editDialogVisible: false,
      // 查询到的用户信息数据
      editForm: {},
      // 修改用户校验规则
      editFormRules: {
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '请输入电话', trigger: 'blur' },
          { validator: checkmobile, trigger: 'blur' }
        ]
      },
      // 控制分配角色对话框
      setRolesDialogVisible: false,
      // 当前角色信息
      userInfo: {},
      // 分配角色列表
      rolesList: [],
      // 当前选中的角色id
      selectId: ''
    }
  },
  created() {
    this.getUserList()
  },
  methods: {
    async getUserList() {
      const { data: res } = await this.$http.get('users', {
        params: this.queryInfo
      })
      if (res.meta.status !== 200) return this.$message.error(res.meta.msg)
      this.userList = res.data.users
      this.total = res.data.total
    },
    // 监听每页显示数量
    handleSizeChange(newSize) {
      this.queryInfo.pagesize = newSize
      this.getUserList()
    },
    // 监听当前页面值
    handleCurrentChange(newPage) {
      this.queryInfo.pagenum = newPage
      this.getUserList()
    },
    // 监听用户状态改变  switch开关
    async userStateChange(val) {
      const { data: res } = await this.$http.put(
        `users/${val.id}/state/${val.mg_state}`
      )
      if (res.meta.status !== 200) {
        val.mg_state = !val.mg_state
        return this.$message.error('更新用户信息失败!')
      }
      this.$message.success(res.meta.msg)
    },
    // 用户弹窗关闭事件
    addDialogClose() {
      this.$refs.addFormRef.resetFields()
    },

    // 添加新用户
    addUser() {
      this.$refs.addFormRef.validate(async valid => {
        if (!valid) return
        const { data: res } = await this.$http.post('users', this.addForm)
        if (res.meta.status !== 201)
          return this.$message.error('添加用户失败！')
        this.$message.success('添加新用户成功！')
        this.dialogVisible = false
        this.getUserList()
      })
    },
    // 编辑用户 弹出框填充信息
    async showEditDialog(id) {
      const { data: res } = await this.$http.get('users/' + id)
      if (res.meta.status !== 200)
        return this.$message.error('查询用户信息失败！')
      this.editForm = res.data
      this.editDialogVisible = true
    },
    // 编辑用户弹窗关闭事件
    editDialogClosed() {
      this.$refs.editFormRef.resetFields()
    },
    // 编辑用户完成 表单预校验
    editUserInfo() {
      this.$refs.editFormRef.validate(async valid => {
        if (!valid) return
        // 编辑用户提交
        const { data: res } = await this.$http.put(
          'users/' + this.editForm.id,
          {
            email: this.editForm.email,
            mobile: this.editForm.mobile
          }
        )
        if (res.meta.status !== 200)
          return this.$message.error('更新用户信息失败！')
        this.getUserList()
        this.editDialogVisible = false
        this.$message.success('更新用户信息成功！')
      })
    },
    // 根据用户id删除对应的数据
    async removeUserInfo(id) {
      const resultConfirm = await this.$confirm(
        '此操作将永久删除该用户, 是否继续?',
        '提示',
        {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }
      ).catch(err => err)
      // console.log(resultConfirm)
      // 如果点击确认按钮  返回字符串 confirm
      // 如果点击取消按钮  返回字符串 cancel
      if (resultConfirm !== 'confirm') return this.$message.info('已取消删除')
      const { data: res } = await this.$http.delete('users/' + id)
      if (res.meta.status !== 200) return this.$message.error(res.meta.msg)
      this.$message.success(res.meta.msg)
      this.getUserList()
    },
    // 分配角色弹框
    async showRolesDialog(roles) {
      this.userInfo = roles
      const { data: res } = await this.$http.get('roles')
      if (res.meta.status !== 200)
        return this.$message.error('获取角色列表失败!')
      this.rolesList = res.data
      this.setRolesDialogVisible = true
    },
    // 确定 分配角色
    async allotRoles() {
      // 如果当前select框选中为空
      if (!this.selectId) return this.$message.error('请选择角色！')
      const { data: res } = await this.$http.put(
        `users/${this.userInfo.id}/role`,
        {
          rid: this.selectId
        }
      )
      if (res.meta.status !== 200) return this.$message.error('分配角色失败！')
      this.$message.success(res.meta.msg)
      this.getUserList()
      this.setRolesDialogVisible = false
    },
    // 分配角色弹框关闭事件
    setRolesDialogClosed() {
      this.selectId = ''
      this.userInfo = {}
    }
  }
}
</script>

<style lang="less" scoped></style>
